Precisely determine the true length of overhead cables required for your project. This Cable Length Calculator from Sag and Span tool helps engineers and technicians estimate wire usage for power lines, communication networks, and other utility installations, ensuring optimal material planning and cost efficiency.
Formula:
The approximate cable length (L) for overhead lines, especially when the sag is relatively small compared to the span, is calculated using the following engineering formula:
L = S * (1 + (8 * dĀ² / (3 * SĀ²)))
- L: Total cable length (Result)
- S: Span length (horizontal distance between support points)
- d: Sag (vertical drop from the horizontal line between supports to the lowest point of the cable)
This formula is widely used for practical estimations in electrical and civil engineering projects.